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Patented Aug. 13, 1895.

L. T. PYOTT. TRUCK POR STREET RAILWAY GARS.

Winesses.

(No'ModeI.) 1'" w., y v2 Sheets-Sheet 2.

L. T. PYOTT.

TRTTGK ,FOR TRBBT RAILWAY GARS.

No. 544,417. Patented Aug. 13,1895.

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LOUIS T. PYo'rT, oE PHILADELPHIA, PENNSYLVANIA, ASSIGNoE 0E ONE` HALE' rro DANIEL E. WATERS AND WILLIAM G. VERNON, 0E SAME PLACE.

TRUCK 4FOR:eTrust-:framLWAY CARS.

SPECIFICATION forming partl of Lettersvlatent No. 544,417, dated August 13, 1895.

Application tied March 12,1895.

.To tZZ whom it may concern:

Be it known that I, LOUIS T. PYOTT,

a citi- Zen of the United y n States,`residi`ng at Phila- 1n the` county of' hlaelphiaf and State of Pennsylvania, have invented certain new and useful Improvements in lTrucksfor j Street-Railway Cars; and I 'do declare theifollowi'ngto be a full, clear, and exact descrip. tion ofthe invention, such aswill enable others'skilled in the art to which itappertains tol make and use the same, reference being had to the accompanying drawings, and to the l'etters of reference marked thereon, which form a part of this specification.

My Improvement consists in arranging and applying a truck to a street-railway carindependent ofthe car in its construction, so that' 4a truck-of this kind may be interchangeably used under dierent cars of the same construction or under different constructions, such as summer or open cars and winter or 'closed cars, v'and as the two kinds of 4cars are now generally in use by street-railway companies it is a matter of much importance to vbe able to use both sets of cars on one set of trucks, thereby greatly lessening the original outlay and also greatly facilitating the interchange of a damaged body to another truck, or vice versa. This construction is a great improvement over the present form, where the car and its truck are built together and in-"' separable,

my truck being entirely separate from the car and capable 0f removal without displacing any part of the cars bracings, ties, or any other members, making the removal easily,inexpensively, and quickly. Another advantage of my improvements is that I can very readily remove the wheels and axles when they are worn, as is very frelquently the case, without detaching any important members or in any Way taking the truck or its car apart. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure l is a side elevation of the truck. Fig. 2 is aplan View of the truck. Fig. 3 is a section on line ab, Fig. 4, of one of the corrugated central connection-plates. Fig. 4 is an elevation of'one ofthe corrugated central serai No. 541,444. y (No model.

elevation of the cover side of the axle-box.

Fig. 8 is a plan view of the axle-box.

Similar letters refer to similar parts throughout the"views.

I employ the usual wheels A and axles B as ordinarily used under street-ears, and at the usual distance apart, center to center; but the bearings() are inserted into a new form of axle-box D, the axle box having an opening at the side E, the opening being closed by a cover F, preferably hinged at the bottom G and-"secured at the top by a yoke-bolt H, the backof the axle-box D beingformed with an opening d, which permits the insertion of the axle B, through the openings E and d, to its position in the bearing C or its removal therefrom without in any manner disturbing the axle-box D from its fastenings or its removal from the truck. The axle-boxes D are securely fastened by rivets or bolts e to two straight longitudinal bars J, located below them, and which embrace each side of a lower lug j, cast integral with the axle-box D, and which also serves as a distance-block between ythe two bars J of the truck side frame. The bars J unite the axle-boxes D in positive and fixed distance apart longitudinally, and each bar J, being an integral piece, is not subjected or liable to fracture, as in the ordinary constructions of trucks, and is less expensive `thanwhen joined to pedestals by bolts or rivets, and also avoids all liability to work loose and to rattle and jar.

The bars J J are extended beyond the axleboxes D D to enable the attaching of brakes, fenders',and the cross-ties K, which control the parallelism of the two sides of the truck. It will be observed that in my construction of a truck the axle-boxes are im movably secured upon their frames, so that the wheels and v'frames always go in unison, and when the wheels meet imperfections of track or obstructions the frames rise and fall with the wheels, and if the truck was rigidly constructed throughout--that is, one side rigid with the other side-the frame would have to rack and twist to allow theiwheels to find and rest upon uneven rails or the rail contact and adhesion would be imperfect, tending to make vt-he motors slip the wheels, producing flat laterally while permitting free radial move-.I

spots, and uselessly expending power. To overcome such a defect I make the two sides of the t` fisc in tneir vertical movement, one as against the other, by uniting the two sides so that they are pivoted to each other, allowing of a free oscillating movement of the frames to give the wheels perfect uniform adhesion to the rails, and all to have the same contact. To accomplish this very desirable and necessary result, the side frames J J J J are connected together by two A -vshaped braces L L, these braces L L having ltheir base securely fastened by bolts or rivets to the frames J J and by brackets n, and at their connecting ends being secured to each other by a pivot-pin M, which holds one to the other ment. At the point of junction I interpose two interlocking corrugated plates N 13.7

These plates N P, having their corrugations in circular lines, permit of free radial movement one on the other, while maintaining the necessary longitudinal contact to cause the two sides of the truck to advance orrecede in unison, they being chambered at u to seat over he brace-frames L. Upon the A-brace framesL are motor-supports provided with spring-pockets fr to secure either center-hung or over-hung motors. The ends of the truck are held laterally and parallel by cross-ties K, joined at the place of contact with the side frames J J by a single rivet or bolt m, which permits of pivotal action while securing the parallelism desired.

The side frame J J has near each end, be-

yon-d the wheels, guides w to receive brake' mechanism for stopping the wheels, the

guides permitting the brake-shoes to move horizontally against the Wheels.

The truck propels the car by means of pedestals T T', attached to the ear, and which abut against the axle-boxes D upon opposite sides. Thus by means of the axle-boxes D, being rigidly attached to the frame J all wheels are driven in either forward or backward motion, as required, through the pedestals T T.

The axle-boxes D have on their pedestal sides tongues and grooves, or, if preferable, coringttlcns, to interlock with similar construction ou the pedestals of the car to hold the axle-boxes and pedestals to their correct lateral position while permitting free vertical movement.

I claim as my invention- 1. In a street car truck, wheels for the truck, axles for the wheels, the axles placed in bearings inserted in axle boxes which are rigidly and unyieldingly attached to a frame suspended under them and connecting them tixedly together, and means for inserting or removing the axles from the sides of the axle boxes withoutremoving the axle boxes from their frame, or the separation of the frame, the truck "construction being separate and distinct from the car to which it is applied, substantially as described. l

2. In a car truck, the combination of wheels, axles for the wheels, bearings for the axles, axle boxes for the bearings securely attached to an under frame, side openings inthe axle boxes for the insertion or removal of the axles and the extension of the frame composed of integral bars beyond the wheels, and guides for brake shoes, substantially as described.

. 3. A street car truck having axle boxes rigidly attached to a suspended side frame work of integral bars, the frame work extendthe frames connected at each outer end by a crosstie having pivotal connection for vertical radial movement with each side frame work, substantially as described.

4. A street car truck having on each side --axle boxes rigidly secured together longitudinally, and at its central lateral connection means 'for radial movement, and interlocking corrugated plates to control contact and pressure for longitudinal movement, substantially as described.

5. In a street car truck rigid and unyielding side frames, axle boxes firmly xed there on, means for connecting the two sides of the truck yieldingly together for vertical-radial movement at the ends and the center, and supports for motors attached to the central cross-bracesfsubstantially as described.

6. In a street Ymotor car truck, rigid side frames, side opening axle boxes immovably secured thereto, and one side of each of said 'axle boxes engaging with pedestals from the car, the truck structure being independent of the car and removable and detachable therefrom, substantially as described.

7. The combination in a street car truck of wheels, axles for the wheels axle boxes with secured to said axle boxes, substantially as described.

8. The combination in a street car truck of axles, wheels on the axles, bearings for the journals of the axles, side opening boxes for the bearings, framing for the boxes rigidly attached thereto and extending beyond them,

and guides on the extended ends of the framing for directing and controlling the movement of brake shoes, substantial-ly as de* scribed.

9. The combination in astreet car truck of Wheels, axles for the wheels, bearings for the axles, axle boxes with side openings for the bearings, and tongues and grooves on one side of each axle box, substantially as described.

10. The combination in a street car truck, of wheels, axles for the wheels, bearings for the axles, side opening boxes rigidly attached to the frame, and each side of the truck TIO lside openings and integral barframes rigidly -joined to the other side with means for exi- `ble radial movement at the point of union, substantially as described.

l1. The combination in a street car truck,

5 of wheels, axles for the Wheels, bearings and boxes for the axles, the boxes having side openings and being rigidly attached to the frames, and means to connect the frames laterally at their ends for pivotal movement'sublo stantially as described. i

12. In a street car truck, the combination of wheels, axles for the wheels, bearings and boxes for the axles, rigidly attached frames to the axle boxes,pivotal union of the frames 15 transversely and means for interlocking at the point of union to 'join the two parts of the truck longitudinally, substantially as described.

13. In astreet car truck independent of the car it carries,a frame on each side unyieldzo ingly secured to the axle boxes of that side, and means for joining the two sides flexibly lat the center, and at each end, substantially as described.

In testimony whereof I affix my signature 25 in presence of two Witnesses.

LOUIS T. PYOTT. Witnesses:

R. C. WRIGHT, J. H. BREARLEY. 

